Nostoc This is a genus of blue-green algae or cyanobacteria. They are prokaryotic and perform photosynthesis. They are often found on tree trunks. They are also found as an algal component of lichens in certain bryophytes. They are capable of nitrogen-fixing and perform photosynthesis. They are also present as an endosymbiont to fungus.
Nostoc are prokaryotic and are grouped with bacteria. The cell lacks membrane-bound organelles and genetic material is found dispersed in the cytoplasm. They are kept in cyanobacteria as they are photosynthetic.
